Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Haszeldine, R. S., & Haszeldine, R. N. (2003). Neolithic, natural, or new? Critical observations of cup and ring petroglyphs in Langdale, Cumbria.

Chicago Citation Edition Citation

Haszeldine, R. S., und R. N. Haszeldine. Neolithic, Natural, or New? Critical Observations of Cup and Ring Petroglyphs in Langdale, Cumbria. 2003.

MLA Citation Edition Citation

Haszeldine, R. S., und R. N. Haszeldine. Neolithic, Natural, or New? Critical Observations of Cup and Ring Petroglyphs in Langdale, Cumbria. 2003.